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耗水率高低是水电站经济运行的一个重要指标,充分利用水能,尽力降低水耗,节水多发电是水电站增效工作的重点。对调节性较差的水电站,其发电量在一定程度上决定于入库径流及径流过程,而水库入流主要取决于水库集水流域的天然降水特性并受上游水利工程的调节影响,对于径流总量相近的两场洪水,峰型尖瘦的容易造成弃水,峰型矮胖的对发电较为有利,水库的来水及其过程不可控制却可预测,因此如何充分利用水资源,合理控制水库水位,是一项值得探讨的课题。通过对碗米坡电厂2010年1～8月的日耗水率及相关参数进行计算分析,找出它的变化规律及影响其变化的主要因素,从节能降耗的角度寻求水电站经济运行方法,降低耗水率,增加发电量。
The level of water consumption is an important indicator of the economic operation of hydropower stations. Making full use of hydropower, making every effort to reduce water consumption, water-saving and multi-generation is the key point of hydropower efficiency enhancement. For less regulated hydropower stations, the amount of power generation depends to a certain extent on runoff and runoff of reservoirs. However, the inflow of reservoirs mainly depends on the natural precipitation characteristics of the catchment watershed and is affected by the regulation of upstream water conservancy projects. For the total runoff Two similar floods, the peak-shaped thin and easy to cause abandoned water, peak-type stubborn power generation is more favorable, the reservoir water and its process can not be controlled but predictable, so how to make full use of water resources and rational control of the reservoir Water level is a topic worth discussing. By calculating and analyzing the daily water consumption rate and related parameters of Wanmeipo Power Plant from January to August in 2010, the change law and the main factors affecting the change are found out. The economic operation method of hydropower station is sought from the point of energy saving and consumption reduction. Reduce water consumption, increase power generation.